Football helmet clock



FIG. 1 shows a front perspective view of my design for a football helmet clock;

FIG. 2 shows a front elevational view of my design for a football helmet clock.

FIG. 3 shows a side elevational view of my design for a football helmet clock; and,

FIG. 4 shows a top plan view of my design for a football helmet clock.

The broken lines in the drawings are for illustrative purposes only and do not form part of the claimed design. 

The ornamental design for a football helmet clock, substantially as shown and described. 